The SWK MOBIL GmbH is a public transport operator in the city of Krefeld, and part of the Viersen district in Western Germany.
The company is a fully owned subsidiary of Stadtwerke Krefeld (SWK), offering tramway and bus services.
It is a member of both the Verkehrsverbund Rhein-Ruhr (VRR) and the Verkehrsgemeinschaft Niederrhein (VGN) transport associations.
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